Windows 7 with SP1 ALL EDITIONS with OEM logos and themes. Installs themes of the manufacturer of the computer (If a brand is detected) (except for Enterprise Edition) and certificate and license code of the Brand (If SLIC is 2.1) The language is English ONLY. Perfectly like an OEM installed OS.If the computer is not an OEM manufactured computer or SLIC 2.1 is not present, Windows 7 Loader by Daz is installed to activate the Windows.